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(No Model.)

G. WAGK'ER. Gas Engine.

Patented May 31,1881.

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UNTTED STATES PATENT OFFICE.

GEORGE WAOKER, OF NEW YORK, N. Y., ASSIGNOR TO HIMSELF AND JOHN J. JUNGERMANN, OF SAME PLACE.

GAS-ENGINE.

SPECIFICATION forming part of Letters Patent No. 242,401, dated May 31, 1881.

Application filed April 1, 1881. (No model.)

To all whom it may concern Be it known that I, GEORGE VACKER, of the city, county, and State of New York, have invented a new and Improved Gas-Engine, of

which the following is a specification.

The object of my invention is to utilize the power that is obtained by the explosion of gas n a closed vessel, and to utilize the power produced by the pressure of the air on a piston IO at the outer end of a cylinder in which a vacuum has been formed by an explosion.

My invention consists in a gas-engine having its piston-rod pivoted to a guide-rod pivted to the frame of the machine, to which 1 guide-rod one end of the connecting-rod is pivoted at or near thejoint with the piston, whereas the other end is attached to the crank of the fly-wheel.

In the accompanying drawings, Figure 1 is a longitudinal sectional elevation of my improved gas-en gine. Figs. 2 and 3 are diagrams of the same, showing the piston and crank in various positions.

Similar letters of reference indicate correspending parts.

The piston-rod A is pivoted to the upper or outer surface of the piston B, contained within the \vaterjacketed cylinder 0 of a gas-engine, provided with suitable devices for admitting,

3o mixing, and igniting the explosive gases. I will not describe these devices, as they are not the subject of my invention.

The upper end of the piston-rod A is pivoted to a guide-rod, D, which is pivoted to the frame 5 E of the machine at F.

The connecting-rod G is attached to the crank H of the shaft J, and is pivoted to the guiderod D at its joint with the piston-rod, as shown in Figs. 2 and 3, or between thisjointand the 0 pivot F.

A fly-wheel, K, and an eccentric wheel, L, for operating the slide M, which opens and closes the valve for admitting gas, air, &c., are mounted on the shaft J.

The operation is as follows: If the piston B is in the position shown in Figs. 1 and 2, it will be thrown upward very rapidly by the gases of the explosion. The piston will have completed its stroke when the crank has made only about one-third of a revolution, the piston and-crank 5o connecting rod, &c., being in the position shown in Fig. 2 when the outward stroke ofthe piston is completed. The crank then swings around in the direction of the arrow (1., and the movement of the piston is hardly perceptible.

The gases now begin to condense and form a vacuum under the piston B, and the piston is forced downward in the cylinder (3 with accelerated speed by the pressure of the air.

The speed of the outward stroke is in proportion to the speed of the inward stroke as two is to one, or, that is, the piston moves twice as rapidly in the outward as in the inward stroke. But this is the result desired, for the piston must leave the cylinder very rapidly or the energy of the explosion will waste itself in ibrating and shaking the cylinder; but the piston must retnrn slowly if the benefits ot' the condensation of the gases are utilized,asthis condensation takes plaeegradualiy. 7c

The cylinder may be vertical, horizontal, or inclined.

Having thus fully described my invention,

I claim as new and desire to secure by Letters Patent 1. In a gas-engine, the combination, with the frame, of a guide-rod pivoted thereto, a pistonrod pivoted to the guide-rod, a fiy-wheel shaft having crank, and a connecting-rod, the latter pivoted at one end to the piston-rod and at the other to the crank of fly-wheel shaft, all eon structed and arranged as and for the purpose specified.

2. In a gas-engine, the combination, with the cylinder 0, of the piston B, the piston-rod 8 A, pivoted thereto, the rod D, pivoted to the piston-rod A and to the frame E, and the connecting-rod G, pivoted to the rod D and attached to the crank H, substantially as herein shown and described, and for the purpose 9c set forth.

GEORGE WAOKER.

Witnesses OSCAR F. GUNZ, G. SEDGWICK. 

